JSON Format & Viewer
Paste, edit, validate and visualize your JSON data with this interactive tool
JSON Viewer
Enter valid JSON to visualize the structure
JSON Formatter & Validator – Clean, Beautify, and Check JSON
JSON Formatter helps you instantly beautify, validate, and minify JSON. Paste raw JSON and get readable output with proper indentation, or compress it for production. It also catches common errors ⚡ so you can fix them fast.
📘 What is JSON?
JSON (JavaScript Object Notation) is a lightweight data format 🌍 used by APIs, apps, and databases. It stores data as key:value pairs and arrays, and is both human- and machine-readable 🤖.
📂 Example JSON
{
"name": "Ava",
"age": 27,
"skills": ["React", "Node", "SQL"],
"active": true
}❓ Why Use a JSON Formatter?
- 👀
Readability: Pretty-print messy JSON with indentation.
- ✅
Validation: Catch syntax errors instantly (missing commas, quotes, braces).
- 📦
Minify: Remove whitespace for smaller payloads.
- 🤝
Workflow: Copy, export, or share clean JSON with your team.
🌟 Key Features
- 🎨Beautify / Pretty-print with custom indentation
- 🛡️Validate JSON and highlight error location
- ⚡Minify (compress) JSON for production
- 📋Copy to clipboard & export as
.json - 🔑Optional: Sort keys A→Z for consistent diffs
🚫 Common JSON Errors (and Fixes)
- ❌
Trailing commas: Remove the last comma in objects/arrays.
- 🔒
Unquoted keys: Keys must be in quotes.
- ⚠️
Single quotes: Use double quotes for strings.
- 🚫
Invalid numbers/NaN: Use valid numbers; no NaN or Infinity.
📝 How to Use
- 1
📥 Paste your JSON into the editor.
- 2
🎨 Click Format to beautify or Minify to compress.
- 3
🔍 Use Validate to check for syntax errors.
- 4
📤 Copy or export the result for your project.
⚠️ Note: This tool works entirely in your browser 🌐. Your JSON is not uploaded to any server 🔒.